Which statement correctly defines empirical evidence?
a) an accurate observation
b) quantitative and qualitative data
c) an accepted understanding
d) approximations used for testing

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little